Nissan Altima L32. Instruction — part 1339
SEC-506
< COMPONENT DIAGNOSIS >
[SEDAN WITHOUT INTELLIGENT KEY]
KEY SLOT ILLUMINATION
NO
>> Repair or replace key slot power supply circuit.
3.
CHECK KEY SLOT GROUND CIRCUIT
Check continuity between key slot connector and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace key slot ground circuit.
4.
CHECK KEY SLOT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM and key slot connector.
3. Check continuity between BCM connector and key slot connec-
tor.
4. Check continuity between BCM connector and ground.
Is the inspection result normal?
YES
>> GO TO 5
NO
>> Repair or replace harness between BCM and key slot.
5.
CHECK KEY SLOT
Is the inspection result normal?
YES
>> GO TO 6
NO
>> Replace key slot. Refer to
SEC-596, "Removal and Installation"
6.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
>> Inspection End.
Key slot connec-
tor
Terminal
Ground
Continuity
M40
7
Yes
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BCM connector
Terminal
Key slot
connector
Terminal
Continuity
A: M19
80
B: M40
6
Yes
BCM connector
Terminal
Ground
Continuity
A: M19
80
No
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KEY CYLINDER SWITCH
SEC-507
< COMPONENT DIAGNOSIS >
[SEDAN WITHOUT INTELLIGENT KEY]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
KEY CYLINDER SWITCH
Description
INFOID:0000000004499204
For vehicles equipped with LH and RH anti-pinch system, the main power window and door lock/unlock switch
detects condition of the door key cylinder switch and transmits to BCM as the LOCK or UNLOCK signal.
For vehicles equipped with LH anti-pinch system only, the front door lock assembly LH (key cylinder switch)
transmits the LOCK or UNLOCK signal directly to the BCM.
Component Function Check
INFOID:0000000004499205
1.
CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check KEY CYL UN-SW, KEY CYL UN-SW in “DATA MONITOR” mode for “POWER DOOR LOCK SYSTEM”
with CONSULT-III. Refer to
.
Is the inspection result normal?
YES
>> Key cylinder switch is OK.
NO
>> Refer to
DLK-306, "Diagnosis Procedure (With LH Anti-Pinch Only)"
.
Diagnosis Procedure
INFOID:0000000004499207
1.
CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between BCM connector and ground.
Is the inspection result normal?
YES
>> Replace main power window and door lock/unlock switch. Refer to
Monitor item
Condition
KEY CYL LK-SW
Lock
: ON
Neutral / Unlock
: OFF
KEY CYL UN-SW
Unlock
: ON
Neutral / Lock
: OFF
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Terminals
Key position
Voltage (V)
(Approx.)
(+)
(–)
BCM connector
Terminal
M18
56
Ground
Lock
0
Neutral / Unlock
5
34
Unlock
0
Neutral / Lock
5
SEC-508
< COMPONENT DIAGNOSIS >
[SEDAN WITHOUT INTELLIGENT KEY]
KEY CYLINDER SWITCH
NO
>> GO TO 2
2.
CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front door lock assembly LH (key cylinder switch) connector.
3. Check continuity between front door lock assembly LH (key cylinder switch) connector and ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT
1. Disconnect BCM connector M18.
2. Check continuity between front door lock assembly LH (key cyl-
inder switch) connector and BCM connector M18.
3. Check continuity between front door lock assembly LH (key cyl-
inder switch) connector and ground.
Is the inspection result normal?
YES
>> GO TO 4
NO
>> Repair or replace harness.
4.
CHECK DOOR KEY CYLINDER SWITCH
Check door key cylinder switch.
SEC-508, "Component Inspection"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-42, "Intermittent Incident"
.
NO
>> Replace front door lock assembly LH (key cylinder switch). Refer to
LOCK : Removal and Installation"
.
Component Inspection
INFOID:0000000004499208
COMPONENT INSPECTION
1.
CHECK DOOR KEY CYLINDER SWITCH
Front door lock assembly LH connector
Terminal
Ground
Continuity
D10
4
Yes
Front door lock assembly LH
connector
Terminal
BCM connector
Terminal
Continuity
A: D10
5
B: M18
34
Yes
6
56
Front door lock assem-
bly LH
connector
Terminal
Ground
Continuity
A: D10
5
No
6
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KEY CYLINDER SWITCH
SEC-509
< COMPONENT DIAGNOSIS >
[SEDAN WITHOUT INTELLIGENT KEY]
C
D
E
F
G
H
I
J
L
M
A
B
SEC
N
O
P
Check front door lock assembly LH (key cylinder switch).
Is the inspection result normal?
YES
>> Key cylinder switch is OK.
NO
>> Replace front door lock assembly LH (key cylinder switch). Refer to
LOCK : Removal and Installation"
.
Terminal
Key position
Continuity
Front door lock assembly LH
(key cylinder switch) connector
5
4
Unlock
Yes
Neutral / Lock
No
6
Lock
Yes
Neutral / Unlock
No
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